Abstract: In a semiconductor device and a method of fabrication thereof, a resin film forms an interlayer film of the semiconductor device having a multilayer interconnection structure, and is formed by only one coating using coating liquid containing silicone ladder polymers represented by the chemical formula: (HO).sub.2 (R.sub.2 Si.sub.2 O.sub.3).sub.n H.sub.2. As a result, it is possible to improve long-term reliability of electric characteristics or the like, and simplify a process.

Abstract: A centralized test apparatus is provided for an ATM exchange system. The test apparatus monitors cells transmitted through a specified line connected to an office unit of the exchange system or through a specified path in the exchange system, and measures the traffic of the specified line or path. The test apparatus has an instruction unit for issuing an instruction to test a cell transmitted through the specified line or path, a destination changer arranged in the office unit, for changing the destination header of the cell according to an instruction from the instruction unit, so that the destination header indicates a tester, a switching unit for guiding the cell to the tester according to the header, and the tester fixed in the exchange system, to centrally monitor and test the cell.

Abstract: A high-purity silicone ladder polymer of high molecular weight which contains 1 ppm or less of sodium, potassium, iron, copper, lead, magnesium, manganese and chlorine, and 1 ppb or less of uranium and thorium; and whose polymerization degree is 600 to 10000. Trialkoxysilane compounds or trichlorosilane compounds are hydrolyzed to produce a high-purity silicone ladder prepolymer whose polymerization degree is 5 to 600. The silicone ladder prepolymer is subjected to dehydrative condensation by using a nucleophilic reagent as a catalyst, and then purified in a dissolution/reprecipitation method to yield the silicone ladder polymer.

Abstract: A switch comprising a switch case, contacts adapted to be opened and closed, an arc extinguishing chamber disposed in the vicinity of the contacts, and an arc extinguishing material capable of reducing the amount of metal particles and free carbons to be scattered from components disposed within the switch by an arc generated when the contacts are opened or closed or capable of insulating the metal particles and the free carbons to convert into an insulator, thereby inhibiting a decrease in arc resistance expected to occur upon the generation and extinction of the arc and a decrease in insulation resistance expected to occur within and around the arc extinguishing chamber and at inner wall surfaces of the switch case upon and after the extinction of the arc.

Abstract: A combination tool exchanger and storage device adapted to be fitted to a die cutter for exchanging and storing a plurality of profiled cutter dies each having a cutter blade of a different configuration. The die cutter is for cutting a sheet-like material by urging the sheet-like material against a selected one of the profiled cutter dies retained within a cutter die mounting chamber. The combination tool exchanger and storage device includes retaining arms for holding one of the profiled cutter dies so as to confront a first entrance leading to the cutter die mounting chamber and for sliding the profiled cutter die horizontally towards the cutter die mounting chamber, a cutter die storage chamber disposed above or below the die cutter, and an elevator unit for selectively driving the retaining arms between a first position aligned with the first entrance leading to the cutter mounting chamber and a second position aligned with a second entrance leading to the cutter die storage chamber.

Abstract: A method for the preparation of one-package room-temperature-curable silicone compositions that do not slump prior to their cure, do not crack or fissure during their cure even when deformed by an external force, and do not yellow where an example of the room-temperature-curable silicone compositions is(a) hydroxyl-terminated diorganopolysiloxane,(b) oxime-functional organosilicon compound, and(c) inorganic filleraccording to the following four steps:step (1) in which 20 to 70 weight % of the total amount of component (a) is mixed with methyltris(methyl ethyl ketoximo)silane,step (2) in which component (c) is added and mixed into the mixture prepared in step (1),step (3) in which 30 to 80 weight % of the total amount of component (a) is mixed with vinyltris(methyl ethyl ketoximo)-silane,step (4) in which the mixture prepared in step (3) is mixed with the mixture prepared in step (2).

Abstract: One-package room-temperature-curable silicone elastomer compositions that do not slump prior to their cure, that provide a suitable processing or working time, that do not crack or fissure during their cure even when deformed by an external force, and that do not yellow during storage or after curing are prepared by mixing (A) the reaction mixture of(a) hydroxyl-terminated diorganopolysiloxane and(b) alkyl-containing oximosilaneor optionally (b) alonewith (B) the reaction mixture of(a) hydroxy-terminated diorganopolysiloxane and(c) vinyl-functional oximosilaneand by thereafter mixing in(C) inorganic filler.

Abstract: In a semiconductor device and a method of fabrication thereof, a resin film forms an interlayer film of the semiconductor device having a multilayer interconnection structure, and is formed by only one coating using coating liquid containing silicone ladder polymers represented by the chemical formula: (HO).sub.2 (R.sub.2 Si.sub.2 O.sub.3).sub.n H.sub.2. As a result, it is possible to improve long-term reliability of electric characteristics or the like, and simplify a process.

Abstract: An electrophotographic photoconductor comprises an electroconductive substrate and a photoconductive layer formed thereon comprising as an effective component at least one pyrenylamine derivative of formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, w, j, k, l, m and n are specifically defined in the specification. Furthermore, a novel pyrenylamine derivative for use in the above electrophotographic photoconductor, an aldehyde compound, which is an intermediate for producing the pyrenylamine derivative, and methods of preparing the pyrenylamine derivative and the aldehyde compound are disclosed.

Abstract: A non-yellowing one-package, RTV, silicone elastomer composition is prepared and has properties such that prior to its cure, it is highly workable and that during its cure does not crack or fissure even when deformed by external force. These one-package, room-temperature-vulcanizable, silicone elastomer compositions comprise (A) diorganopolysiloxane endblocked by oxime group-containing organic radicals where at least 50 mole of the end groups contain alkenyl radicals, (B) oxime group-containing organosilane where no more than 50 mole % of the silane molecules contain alkenyl, and (C) inorganic filler.

Abstract: A method for the preparation of a non-yellowing one-package room-temperature-curable silicone elastomer composition that prior to its cure is highly workable and that during its cure does not crack or fissure even when deformed by an outside force. The method comprises as step one mixing of silanol-containing polydiorganosiloxane and inorganic filler; as step two admixing vinyltrioximosilane into the mixture of step one; and as step three admixing an alkyltrioximosilane into the mixture of step two.

Abstract: A pyrenylamine derivative having an unsaturated bond formula (I), which can be employed as an organic photoconductive material for use in electrophotography: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, W, l, m, n, j and k are specifically defined in the specification, an aldehyde compound of formula (II), which is an intermediate for preparing the pyrenylamine derivative: ##STR2## and methods of producing the pyrenylamine derivative and the aldehyde compound are disclosed.

Abstract: In a semiconductor device and a method of fabrication thereof, a resin film forms an interlayer film of the semiconductor device having a multilayer interconnection structure, and is formed by only one coating using coating liquid containing silicone ladder polymers represented by the chemical formula: (HO).sub.2 (R.sub.2 Si.sub.2 O.sub.3).sub.n H.sub.2. As a result, it is possible to improve long-term reliability of electric characteristics or the like, and simplify a process.

Abstract: An electrophotographic photoconductor comprises an electroconductive substrate and a photoconductive layer formed thereon comprising as an effective component at least one pyrenylamine derivative of formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, W, j, k, l, m and n are specifically defined in the specification. Furthermore, a novel pyrenylamine derivative for use in the above electrophotographic photoconductor, an aldehyde compound, which is an intermediate for producing the pyrenylamine derivative, and methods of preparing the pyrenylamine derivative and the aldehyde compound are disclosed.

Abstract: An electrophotographic photoconductor comprises an electroconductive substrate and a photoconductive layer formed thereon comprising as an effective component at least one pyrenylamine derivative of formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, W, j, k, l, m and n are specifically defined in the specification. Furthermore, a novel pyrenylamine derivative for use in the above electrophotographic photoconductor, an aldehyde compound, which is an intermediate for producing the pyrenylamine derivative, and methods of preparing the pyrenylamine derivative and the aldehyde compound are disclosed.

Abstract: An electrophotographic photoconductor comprises an electroconductive substrate and a photoconductive layer formed thereon comprising as an effective component at least one pyrenylamine derivative of formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, W, j, k, l, m and n are specifically defined in the specification. Furthermore, a novel pyrenylamine derivative for use in the above electrophotographic photoconductor, an aldehyde compound, which is an intermediate for producing the pyrenylamine derivative, and methods of preparing the pyrenylamine derivative and the aldehyde compound are disclosed.

Abstract: An electrophotographic photoconductor which is composed of an electroconductive support and a photoconductive layer formed thereon comprising a novel pyrene-ring-containing olefin compound having formula [I]: ##STR1## wherein R.sup.1 and R.sup.2 each represent hydrogen or an alkyl group which may have a substituent; Y is an aliphatic hydrocarbon group which may have a substituent, a cyclic hydrocarbon group which may have a substituent, or an aromatic group which may have a substituent; n is an integer of 0 or 1, and m is an integer of 1 to 3, provided that when n is 0, m is 1, R.sup.1 is hydrogen, and Y is an aromatic group with a substituent ##STR2## R.sup.2 and R.sup.3 each represent hydrogen, and Y and R.sup.1 may be bonded to form a ring, a method of synthesizing the pyrene-ring-containing olefin compound and an intermediate therefor are disclosed.

Abstract: Disclosed herein is a semiconductor device having a multilayer interconnection structure, which is provided with a plurality of via holes having constant diameters. Patterns of a first interconnection layer are provided on a semiconductor substrate. An interlayer insulating film is provided over the semiconductor substrate, to cover the patterns of the first interconnection layer. A silicon ladder resin film is applied onto the surface of the interlayer insulating film, to flatten the same. First and second via holes are provided through the silicon ladder resin film and the interlayer insulating film, to expose first and second coupling portions provided on the surfaces of the patterns of the first interconnection layer. A second interconnection layer is provided over the semiconductor substrate, to be connected with the first and second coupling portions through the first and second via holes respectively.

Abstract: An electrophotographic photoconductor having an electroconductive support and a photoconductive layer formed thereon containing a charge generating material, a charge transporting material and lignin.

Abstract: An electrophotographic photoconductor is composed of an electroconductive substrate and a photoconductive layer formed thereon including a m-phenylenediamine derivative of formula (I): ##STR1## wherein Ar represents a non-condensed polycyclic hydrocarbon group other than a phenyl group, or a condensed polycyclic hydrocarbon group having not more than 18 carbon atoms; and R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each represent hydrogen, a halogen atom, a cyano group, a nitro group, an alkyl group, an alkoxyl group, an aryl group, an aryloxy group, an alkylmercapto group, a group represented by ##STR2## in which R.sup.6 and R.sup.7 each represent hydrogen, an alkyl group, or an aryl group, an alkylenedioxy group or an alkylenedithio group. Novel m-phenylenediamine derivatives for use in the electrophotoconductor and intermediates for producing the m-phenylenediamine derivatives, and methods of those derivatives are disclosed.